What is the key for the Background color of

Got it

TabbedMdiContainerTabItemBackgroundActiveFocusedBrushKey

But it took me alot of trial and error to find this.

What is the best way to track these things down so I dont have to bother you.

Hi Jack,

I believe your company has WPF Studio so if you log into your account, you can download all the default styles/templates from the Purchases tab on your organization account page.  That way you can see the resources used for any of our controls.

Definately have been sifting through  the downloaded styles.

You are right, the answers are in there.But it a bit of an easter egg hunt some times.

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Don't know if it is possible, but here is a suggestion.

Come up with a sample app with all (most of) your controls on a screen.

A user could select a theme.

Then have a property grid with the valrious ResoucreKey values (color / thickness) groouped in some meaningful way.

Then a user could change them in the property values and immediately see the end result.

You could also set it up so that you could save a XAML resource file with any values they have overriden.

Just a thought...

Maybe Google 

"JQuery Theme Roller"

or

"Kendo UI Theme Builder"

for examples of what I am talking about.

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Really getting into your quite now.

Liking it.

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JES